Physical Sciences and Mathematics Commons^™

Farm Management Practice For The Prevention Of Soil Erosion In The Canarvon Horticulture Area, David Parr

Horticulture research reports

Lower Gascoyne Management Strategy

The Carnarvon horticultural area has suffered considerable erosion damage following flooding of the Gascoyne River.

The purpose of this report is to describe the factors that contribute to soil erosion in the Carnarvon horticultural area (Section 1) and provide guidelines for soil management (Sections 2 and 3) which will assist farmers, local government planners and government bodies with responsibility for resource protection and conservation.

The report:

• Provides detailed information on soil management for intensive irrigated cropping
• Details cropping alternatives to better manage the soil erosion risk
• Identifies appropriate plants for soil stabilisation in a range of …

Status Of The Major Oyster Diseases In Virginia 2002 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson

Reports

Samples collected monthly from the upper James River sites from January through May showed a decline in P. marinus prevalence during the 4 winter and spring following a typical annual pattern; however, annual minimums were atypically high, particularly at Point of Shoals and Wreck Shoal (12-44%). Unusually high salinity conditions and warm winter temperatures promoted high overwintering survival of the pathogen and an early onset of the disease in the summer months. Perkinsus marinus prevalence increased to 100% at all four of the upper river stations and record high infection intensities were observed at Deepwater Shoal and Horsehead Rock. It …

Smart Growth And Land Acquisition Priorities: A Cursory Review, New England Environmental Finance Center

Smart Growth

It is well-known and generally accepted that all undeveloped land in New England cannot forever be protected from development; nor would this be a desirable goal, as continued economic development and population growth are near certainties. For these and other reasons, private land trusts and government agencies generally use explicit criteria to prioritize their land acquisition activities and prospects.

Perspectives On Radioactive Waste Disposal: A Consideration Of Economic Efficiency And Intergenerational Equity, Helen R. Neill, Robert H. Neill

Public Policy and Leadership Faculty Publications

There are both internal and external pressures on the U.S. Department of Energy to reduce the estimated costs of isolating radioactive waste, $19 billion for transuranic waste at Waste Isolation Pilot Plant (WIPP) and $57 billion for high level waste at Yucca Mountain. The question arises whether economic analyses would add to the decision-making process to reduce costs yet maintain the same level of radiological protection. This paper examines the advantages and disadvantages of using cost-benefit analysis (CBA), a tool used to measure economic efficiency as an input for these decisions. Using a comparative research approach, we find that CBA …

Conservation And Restoration Of Pine Forest Genetic Resources In México, C. Sáenz-Romero, Amy E. Snively, R. Lindig-Cisneros

Student Published Works

Deforestation rates in México are about 670,000 ha/year. This threatens the richness of forest genetic resources in México, causing the disappearance of locally adapted populations and rare and endangered pine species. México is one of the six megadiverse countries in the world, with half of the world’s Pinus species. Pinus is one of the most economically and ecologically important forest genera in México. We suggest that delineation of seed zones and the establishment of a network of Forest Genetic Resource Conservation Units (FGRCUs), linked with forest management and ecological restoration programs will protect this valuable resource. We estimate that FGRCUs …

Maine's Salt Marshes: Their Functions, Values, And Restoration, Michele Dionne, Erno Bonebakker, Kristen Grant

Maine Sea Grant Publications

This illustrated resource booklet for Maine residents educates the reader about the properties and functions of salt marshes. It also facilitates leadership and participation in restoration efforts by providing information for further resources.

Tws Wildlife Damage Management Working Group Newsletter: Spring 2003 – Volume 10(1)

TWS Wildlife Damage Management Working Group Newsletter

Forward; Recent Working Group Activities; Note From The Treasurer; Note From The Editor; Announcements; Application For Membership / The Wildlife Society

Termiczne Przekształcanie Odpadów Medycznych W Instalacji Fluidalnej Firmy Seghers – Emisja Zanieczyszczeń Gazowych I Możliwości Jej Ograniczenia, Robert Oleniacz

Robert Oleniacz

The paper presents the results of measurements of concentrations and mass streams of selected components in the flue gases from the thermal treatment of medical waste in the Seghers incinerator based on fluidized bed reactor.

The tests were carried out at the measuring points located both before and after of the flue-gas cleaning system based on the injection of dry hydrated lime and carbon sorbent and a ceramic filter. In this way it was possible to determine the effectiveness of the removal of selected air pollutants in the dry cleaning system. Analysis of the results of measurements made ​​it possible …

Dissolution Of Entrapped Dnapls In Variable Aperture Fractures: Experimental Data And Empirical Model, Sarah E. Dickson, Neil R. Thomson

Sarah E Dickson

An appreciation of the dissolution from entrapped nonaqueous phase liquids (NAPLs) in fractures is essential as we attempt to understand and predict the fate of NAPLs present in fractured rock systems. Eight long-term dissolution experiments using 1,1,1-trichloroethane and trichloroethylene were conducted in two laboratory-scale dolomitic limestone variable aperture fractures under various conditions. Between 560 and 2600 fracture volumes of water were passed through the fractures resulting in the removal of 10−60% of the initial mass trapped. The effluent concentration profiles revealed three distinct and characteristic stages of dissolution:  an initial pseudosteady stage, a transient stage, and a tailing stage. On …

Qsar Prioritization Of Chemical Inventories For Endocrine Disruptor Testing, Steven P. Bradbury, Patricia Schmeider, Ovanes Mekenyan, Gilman Veith

Steven P. Bradbury

Binding affinity between chemicals and the estrogen receptor (ER) serves as an indicator of the potential to cause endocrine disruption through this receptor-mediated endocrine pathway. Estimating ER-binding affinity is, therefore, one strategic approach to reducing the costs of screening chemicals for potential risks of endocrine disruption. While measuring ER binding with in vitro assays may be the first choice in prioritizing chemicals for additional in vitro or in vivo estrogenicity testing, the time and costs associated with screening thousands of chemicals is prohibitive. Recent advances in 3D modeling of the reactivity of flexible structures make in silico methods for estimating …

Influence Of Suspended Solids On Acute Toxicity Of Carbofuran To Daphnia Magna: I. Interactive Effects, Steven P. Bradbury, Carl Herbrandson, Deborah L. Swackhamer

Steven P. Bradbury

This study explored the effects on Daphnia magna from exposure to the pesticide carbofuran in combination with stress from suspended solids exposure. Our objective was to assess whether suspended solids affects the toxicodynamic response of D. magna to carbofuran. A series of laboratory experiments was performed where animals were exposed to carbofuran concentrations ranging from 0 to 160 mg/l in combination with suspended solids concentrations ranging from 0 to 10,000 mg/l. In the absence of suspended solids, effects of carbofuran were dose dependent and resulted in an EC(sub)50 of 92 mg/l. Exposure to suspended solids, up to extreme levels that …

Fight On! A Thirty Year History Of The Sawmill Slough Conservation Club, Michael W. Woodward, Erin B. Wiggins

Conservation Club

A history of the Sawmill Slough Conservation Club from it's beginnings to 2003

Scwds Briefs: Volume 18, Number 4 (January 2003)

Southeastern Cooperative Wildlife Disease Study: Publications

• The Latest on chronic wasting disease (CWD): Wisconsin, Illinois, Colorado, South Dakota, Wyoming, Nebraska, Saskatchewan
• The Wildlife Society (TWS) recently published a technical review and draft position statement on the confinement of wild ungulates within fenced enclosures--"Biological and Social Issues Related to Confinement of Wild Ungulates."
• Exotic Newcastle disease (END) was confirmed in backyard poultry flocks in southern California on October 1, 2002.
• Southern Tick-Associated Rash Illness (STARI): In the northeastern United States, Borrelia burgdorferi, the causative agent of Lyme disease, is maintained in nature through a cycle involving the white-footed mouse and other rodents …

Tws Wildlife Damage Management Working Group Newsletter: Vol. 10, Issue 2 Fall 2003

TWS Wildlife Damage Management Working Group Newsletter

Forward ; Working Group Annual Meeting Minutes ; 2003 Wildlife Damage Management Working Group Board Member Ballot; News And Announcements; Executive Board Candidates; Application For Membership / The Wildlife Society

Environmental Management Of Waste Electrical & Electronic Equipment (Weee) In Ireland, Simon Wilkinson

Theses

This thesis follows two previous studies by the Author on the calculation of theoretical WEEE arisings, and an assessment of ecodesign practices in Ireland. It has established collection trials in five different locations throughout Ireland in order to characterise and quantify WEEE arisings, and to examine outlets for collected WEEE. Overall, during the twelve months of collection at the project locations, more than 450 tonnes of WEEE was collected from the public and recycled. Within the catchments of each facility, collection rates of between 2.1 and 3.5 kg/person/year were achieved during the twelve-month trial period. With further public awareness raising …

Fy2003 Annual Report Of The Water Quality Monitoring Project For The Water Quality Protection Program Of The South Florida Keys National Marine Sanctuary, Joseph N. Boyer, Ronald Jones

SERC Research Reports

No abstract provided.

Guiding Growth: A Survey Of Tax Incentives, New England Environmental Finance Center, Muskie School Of Public Service

Legislation

Current development patterns and increased tax pressures in local municipalities combine to harm both Maine’s natural resources and its quality of life. Previous initiatives such as the implementation of zoning laws did not fully result in the desired outcomes. Zoning laws were often too flexible and often did not resist market and political pressures to change zoning regulations to allow development with possible economic growth. A sound taxation system or fee structure may be the solution to slow down development in natural areas and direct it towards areas appropriate for growth.

To protect Maine’s natural resources more successfully from future …

Sublethal Effects Of Sediment Contamination On An Estuarine Amphipod, Bruce W. Vogt

Dissertations, Theses, and Masters Projects

No abstract provided.

Developing A Conceptual System Model For Ecological Integrity Planning In The Greater Kluane Region, Yukon, Brent Heyward Parker

Theses and Dissertations (Comprehensive)

Understanding the complexity and ecological organization of protected area ecosystems, and their bioregional surroundings, is fundamental to maintaining their integrity. This research set out to integrate the bodies of systems and hierarchy theory to establish a framework for developing a conceptual model that would synthesize knowledge from diverse fields and identify key system processes, thereby providing new insight into ecosystem organization, function, and integrity. This understanding was then applied to planning for ecological integrity in the Canadian National Parks context through a case study of Kluane National Park and Reserve (KNP&R) within the Greater Kluane Region (GKR). The methodology characterized …

Water Quality Characterization And Mathematical Modeling Of Dissolved Oxygen In The East And West Ponds, Jamaica Bay Wildlife Refuge, Krishnanand Maillacheruvu, D Roy, John Tanacredi Ph.D.

Faculty Works: CERCOM (1977-2016)

The current study was undertaken to characterize the East and West Ponds and develop a mathematical model of the effects of nutrient and BOD loading on dissolved oxygen (DO) concentrations in these ponds. The model predicted that both ponds will recover adequately given the average expected range of nutrient and BOD loading due to waste from surface runoff and migratory birds. The predicted dissolved oxygen levels in both ponds were greater than 5.0 mg/L, and were supported by DO levels in the field which were typically above 5.0 mg/L during the period of this study. The model predicted a steady-state …

Przebieg Zmienności Stężeń Wybranych Zanieczyszczeń W Gazach Odlotowych Z Procesu Mokrego Gaszenia Koksu, Marian Mazur, Robert Oleniacz, Marek Bogacki

Robert Oleniacz

Continuous measurement results of selected constituent concentrations in the gases emitted to the air during the coke wet quenching process were presented and discussed in the paper. The measurements were carried out for the standard wet quenching tower. The research covered such substances as carbon dioxide, carbon monoxide, hydrogen sulfide, nitrogen oxide, nitrogen dioxide and a total content of hydrocarbons and hydrogen (combustible gases). Changeability of the substance concentrations depending of the quenching process duration was analyzed. Among other things the beginning of these substances formation, appearance of the maximum and the range of observed concentrations were taken into consideration. …

An Examination Of Predatory Pressures On Piping Plovers Nesting At Breezy Point, New York, Brook Lauro, John Tanacredi Ph.D.

Faculty Works: CERCOM (1977-2016)

This study examines predatory threats to Piping Plovers (Charadrius melodus) nesting at Breezy Point, Gateway National Recreation Area, New York. Several methods used include: 1) an evaluation of reproductive success data with documentation of predation to eggs and chicks, 2) predator surveys, and 3) an artificial nest study. The range of breeding pairs nesting from 1988-1996 was 11-19, with an average of 15.8 (SE ± 0.79) pairs/season. The average number of eggs hatched and chicks fledged per year for pairs was 2.2 ± 0.23 and 0.8 ± 0.16 respectively. Reasons for egg losses often went undetected (68%) but …

Managing Nature In Today's World, Walter E. Howard

2002 Bird Strike Committee-USA/Canada, 4th Annual Meeting, Sacramento, CA

The objective of my talk is to help airport authorities better understand the turmoil they encounter when managing birds and other wildlife populations. Many are reluctant to manage birds and mammals because they know that it will inevitably stir up controversy. Especially this is true when the program includes lethal means. Many people think all problems can be resolved by using non-lethal frightening devices or by live-trapping offending animals and relocating them away from airports. There are some sound arguments as to why it is biologically, ecologically and ethically proper to even use lethal means to resolve some airport wildlife …

Mandatory Strike Reporting: The Time Has Come, Paul Eschenfelder

2002 Bird Strike Committee-USA/Canada, 4th Annual Meeting, Sacramento, CA

The reporting of wildlife collisions with aircraft in almost all places, worldwide, is voluntary. As a result data with which to design, manufacture and operate aircraft to mitigate this hazard is poor. Voluntary reporting of strikes has resulted in data collection rates in the USA of around 20%, and only about 9% of the reported strikes contain complete data on bird species. Aviation manufacturers also agree that collection of strike data is difficult, incomplete and without an industry best practice. Air carriers, when research is done, are amazed to find that strike rates may be eight times higher than their …

Development And Maintenance Of Airport Wildlife Hazard Mitigation Website For The Faa And Its Use As A Communication Tool, Archie M. Dickey, Allen R. Newman

2002 Bird Strike Committee-USA/Canada, 4th Annual Meeting, Sacramento, CA

The Federal Aviation Administration’s (FAA) William J. Hughes Technical Center has contracted with Embry-Riddle Aeronautical University-Prescott to develop and maintain a website dealing with a variety of issues and concerns related to wildlife and aviation. Our goal is to increase the transfer of information among biologists and the aviation community regarding the nature of wildlife hazards to aircraft and methods for reducing these hazards. The site has an on-line wildlife strike report form (FAA Form 5200-7) which also enables users submitting strike reports to access information on wildlife management, bird identification, FAA guidelines, and strike statistics. A query system has …

Advances In Radar Technology For Bird Strike Risk Assessment, T. Adam Kelly, Ronald Merritt, Ronald L. White, Mark Howera, Timothy West

2002 Bird Strike Committee-USA/Canada, 4th Annual Meeting, Sacramento, CA

Since the 2001 BSC meeting in Calgary, Geo-Marine, Inc. has made dramatic advances in the development of avian radar systems. The Mobile Avian Radar System (MARS) has undergone major revisions. New radar processor cards provide the computer workstations with higher resolution data than was previously possible. The system now incorporates both horizontal- and vertical-scanning radars. The vertical scanning radar antenna now includes a shield to reduce side-lobe interference. Significant improvements have been made in ground clutter and weather reduction algorithms. The system has been tested for use in real-time monitoring of bird hazards on airports. GMI is currently working with …

Bird Detection And Radar Wind Profilers, Scott Mclaughlin

2002 Bird Strike Committee-USA/Canada, 4th Annual Meeting, Sacramento, CA

Radar wind profilers (RWPs) are a very sensitive class of operational and research-grade meteorological radars designed specifically to detect clear air turbulence in the atmosphere. These systems have been designed with frequencies ranging from 50 MHz to 3 GHz and antenna sizes from about 1 m to >1 ha. Unlike NEXRAD systems, the antennas do not move or scan but rather are stationary and use phase-shifter arrangements to point the beam. Using the Doppler-shifted backscatter return, winds profiles can be measured from near the ground to as high as 20 km in 5- to 60-minute intervals. RWPs have been used …

Development Of A Portable Bird Detection Radar For Airports, Michael Hovan, William J. Hughes

2002 Bird Strike Committee-USA/Canada, 4th Annual Meeting, Sacramento, CA

The development of a prototype portable bird detection radar for airports and airfields will be presented. This prototype radar is currently being developed under a partnership between the U.S. Air Force and the FAA, and is being funded under the U.S. Air Force Dual Use Science and Technology (DUST) program. Overview of the program will be given, and detailed specifications of the radar unit, and planned tests at a commercial airport will be presented. Future Plans for an integration of this type of radar into a real-time airport bird strike advisory system will be presented as well.

Emergency Wildlife Management Response To Protect Evidence Associated With The Terrorist Attack On The World Trade Center, New York City, Richard B. Chipman, Kenneth J. Preusser, Justin T. Gansowski, Carl P. Cranker Iii, Daniel P. Sullivan, Richard A. Dolbeer, Thomas W. Seamans, Laura C. Francoeur

2002 Bird Strike Committee-USA/Canada, 4th Annual Meeting, Sacramento, CA

Human-wildlife conflicts arise under a variety of circumstances and working environments. No one could have predicted the unique working environment created by events surrounding 11 September 2001. At the request of the New York City Police Department (NYPD), the Port Authority of New York and New Jersey (PANYNJ) and the New York State Department of Environmental Conservation, a team of USDA, APHIS, Wildlife Services (WS) biologists mobilized in less than 24 hours to assist officials from the NYPD, PANYNJ and the Federal Bureau of Investigation in managing birds and rodents impacting the recovery of evidence as a result of the …

Evaluation And Mitigation Of Bird Hazards In Ex-Vaso De Texcoco: The Proposed Site Of A New International Airport For Mexico City, Edward C. Cleary

2002 Bird Strike Committee-USA/Canada, 4th Annual Meeting, Sacramento, CA

If Mexico is to meet increasing demands for air travel, a new international airport for Mexico City must be constructed. At the request of the Secretaria de Comunicaciones y Transportes (SCT), we evaluated Ex-Vaso de Texcoco (EVT), one of several sites considered for construction of the new airport, to determine if birds would pose an unacceptable risk to aircraft. Aerial (by helicopter) and ground surveys were conducted on 6 occasions during fall and winter from 1996-2002 to census birds and evaluate aquatic habitats at EVT and other locations in the Valley of Mexico. Total populations estimates for waterfowl and shorebirds …